Digital Intercom & paging system For environment that need independent communication networks, or have strong EMI

This is Nanhua Electronics' new generation industrial intercom & paging system product. For environments that need independent communication networks, or have heavy EMI, such as ports, ships, power and chemical plants, steel mills, offshore platforms, cranes, tunnels and coalmines.DSP high speed data processing and voice compressing coding techniques help solve voice quality problems caused electro-magnetic interference, environment noise, cable distance and multiple phone stations.DT digital broadcasting intercom & paging’s power supply and communication share the same 2-wire cable.  Non-polarity cable connection type, uses central power supply, plug and play, commissioning free, no expertise needed on installation & after-service. All those features can significantly reduce cabling material and installation cost.

SpecificationsFunctions & FeaturesConnect with one 2-core cable, nice and easy netting Ideal product for harsh environments and various applications Good EMI resistance performance, EMC compatibility Digital signal processing technology, non-loss data condensing makes no voice transmission loss and provide crispy voice quality, support 3 party communication, multi-party communication Broadcasting priority -15dB environment noise threshold value, lower interference Auto switching off if no audio input in 2 minutes and go to sleeping mode Support point-point, cascade and spreading netting Auto power adjustment, auto temperature compensate, auto recover, over load protection, auto mute Adjustable broadcasting volume in different working environment System working voltage 24VDC, input power supply uses AC110V±10% or AC220V±10%; has backup power supply(DC24V battery)connetion terminal, the main power supply can be automatically switch to the backup battery when the main power is not available Any phone station can broadcasting call whole working field, which makes finding someone and making an announcement nice and easy Easy of operation, LED working status indication Mini design of the station box, ABS housing, with nice performance, substantial, and safety to use Indoor station adopts phone and speaker all in one design, easy to installation and operation Outdoor station comes with lock, can work under harsh enviroment.InstallationGland box with M25 and M20,please make sure the size you need before installation, and special request can be customized. Make sure the leveling of the mounting surface, suggest to fasten the top two screws first, than can adjust whether need to add some spacer based on the leveling, to avoid the distortion; +24V,-24V are the two cores of the cable, suggest to use the cable with cross section morethan 1.5m2, system power cable is the communication cable, as use the digital carrier, don’t neet the sheild calbe, suggest the sheild cover floating. As the system power output only with 2 connect terminals, so need the external terminal box, eachstation parallel connected in the terminal box. DT201 and DT202 with the same connect board, the connect terminal+24V- are paralleled connected in side, and to use two pairs of terminal is to convenient to connect the stations, and the station power without polarity, to mark the polarity is just only to easy to maintainess. The terminal board for driver’s cabinet station is in the metal case, to connect the microphone should use shield cable. Product FileModel: DT201/DT202/DT203 On Stream Date: Dec., 2010 Applications: Digital intercom is network communication system designed for harsh environments and work site with strong EMI, like port, power plant, mining, chemical plant, hoisting machinery, railway tunnel, Steel and Iron Works, etc. Standard: Certificate: CE Patent: Improve Records:  Fault Records: Quantity/Delivery Day:

DT Dial Digital Intercom & Paging System